From 36c95494609cd6d2541c08e806b4d6bc401bc53f Mon Sep 17 00:00:00 2001 From: James Hogan Date: Fri, 14 Mar 2014 13:06:10 +0000 Subject: [PATCH] MIPS: KVM: Remove dead code in CP0 emulation The code to check whether rd > MIPS_CP0_DESAVE is dead code, since MIPS_CP0_DESAVE = 31 and rd is already masked with 0x1f. Remove it. Signed-off-by: James Hogan Cc: Ralf Baechle Cc: Gleb Natapov Cc: Paolo Bonzini Cc: Sanjay Lal Cc: linux-mips@linux-mips.org Cc: kvm@vger.kernel.org Signed-off-by: Paolo Bonzini --- arch/mips/kvm/kvm_mips_emul.c | 7 ------- 1 file changed, 7 deletions(-) diff --git a/arch/mips/kvm/kvm_mips_emul.c b/arch/mips/kvm/kvm_mips_emul.c index d562572c2efc..e3fec99941a7 100644 --- a/arch/mips/kvm/kvm_mips_emul.c +++ b/arch/mips/kvm/kvm_mips_emul.c @@ -436,13 +436,6 @@ kvm_mips_emulate_CP0(uint32_t inst, uint32_t *opc, uint32_t cause, sel = inst & 0x7; co_bit = (inst >> 25) & 1; - /* Verify that the register is valid */ - if (rd > MIPS_CP0_DESAVE) { - printk("Invalid rd: %d\n", rd); - er = EMULATE_FAIL; - goto done; - } - if (co_bit) { op = (inst) & 0xff; -- 2.39.2